diff --git a/openlp/core/ui/mainwindow.py b/openlp/core/ui/mainwindow.py
index 254c4ab7e..3caef90c5 100644
--- a/openlp/core/ui/mainwindow.py
+++ b/openlp/core/ui/mainwindow.py
@@ -653,7 +653,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
         settings = QtCore.QSettings()
         settings.beginGroup(self.generalSettingsSection)
         if settings.value(u'screen blank', QtCore.QVariant(False)).toBool():
-            self.LiveController.maindDisplaySetBackground()
+            self.LiveController.mainDisplaySetBackground()
             if settings.value(u'blank warning', QtCore.QVariant(False)).toBool():
                 QtGui.QMessageBox.question(self,
                     translate(u'MainWindow', u'OpenLP Main Display Blanked'),
diff --git a/openlp/core/ui/slidecontroller.py b/openlp/core/ui/slidecontroller.py
index b4edc5056..6e8ba8b22 100644
--- a/openlp/core/ui/slidecontroller.py
+++ b/openlp/core/ui/slidecontroller.py
@@ -652,7 +652,7 @@ class SlideController(QtGui.QWidget):
             self.PreviewListWidget.selectRow(index)
             self.onSlideSelected()
 
-    def maindDisplaySetBackground(self):
+    def mainDisplaySetBackground(self):
         """
         Allow the main display to blank the main display at startup time
         """